How to have Checkbox as ColumnHeader of dataGridView

Question

I\'m developing a window application in C# VS2005. I have a dataGridView in which the first column has Checkboxes. Now i want the Column header also to be a CheckBox which i

Answer 1

So - to address the top-most checkbox not showing as checked (even though it is), I ended up editing your event as follows:

private void checkboxHeader_CheckedChanged(object sender, EventArgs e) { //CheckBox headerBox = ((CheckBox)dtgv1.Controls.Find("checkboxHeader", true)[0]);

        var headerBox = (CheckBox)sender;
        var b = headerBox.Checked;
        var c = int.Parse(headerBox.Name.Replace("checkboxHeader", ""));
        for (int i = 0; i < dgvSources_fuzzyID.RowCount; i++)
        {
            dgvSources_fuzzyID.Rows[i].Cells[0].Value = headerBox.Checked;
            ***dgvSources_fuzzyID.RefreshEdit();***
        }
    }

That is what finally fixed it for me...